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Removal of Lunar Dust Simulant from Cold Dielectric Surfaces with Electron Beam
Hsin-yi Hao, Wousik Kim, David S. Shelton, Benjamin Farr, Xu Wang, Inseob Hahn
https://arxiv.org/abs/2505.24074

Removal of Lunar Dust Simulant from Cold Dielectric Surfaces with Electron Beam
It has been demonstrated that lunar dust simulant can be efficiently lofted and removed from various room temperature surfaces in vacuum when exposed to a low-energy electron beam. This provides a potential solution to the well-known dust risks associated with future lunar exploration. Considering its application in extremely cold regions on the Moon, we experimentally demonstrated dust lofting from surfaces at temperatures as low as -123degC using an electron beam. Compared to room temperature…

BALSAM: A Platform for Benchmarking Arabic Large Language Models
Rawan Al-Matham, Kareem Darwish, Raghad Al-Rasheed, Waad Alshammari, Muneera Alhoshan, Amal Almazrua, Asma Al Wazrah, Mais Alheraki, Firoj Alam, Preslav Nakov, Norah Alzahrani, Eman alBilali, Nizar Habash, Abdelrahman El-Sheikh, Muhammad Elmallah, Haonan Li, Hamdy Mubarak, Mohamed Anwar, Zaid Alyafeai, Ahmed Abdelali, Nora Altwairesh, Maram Hasanain, Abdulmohsen Al Thubaity, Shady Shehata, Bashar Alhafni, Injy Hamed, Go I…

BALSAM: A Platform for Benchmarking Arabic Large Language Models
The impressive advancement of Large Language Models (LLMs) in English has not been matched across all languages. In particular, LLM performance in Arabic lags behind, due to data scarcity, linguistic diversity of Arabic and its dialects, morphological complexity, etc. Progress is further hindered by the quality of Arabic benchmarks, which typically rely on static, publicly available data, lack comprehensive task coverage, or do not provide dedicated platforms with blind test sets. This makes it…

Our evening watching the local single A ball club, the Salem Red Sox, with friends was cut short. You could see the curtain of rain rapidly advancing down the mountains and towards the ballpark.
Surprisingly they didn’t stop the game for thunder and lightning, but once the tarps came out, we knew they’d have to call it.
Instead we ended up going out for dinner, which was a delight.

NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b
Romain Allart, Yann Carteret, Vincent Bourrier, Lucile Mignon, Frederique Baron, Charles Cadieux, Andres Carmona, Christophe Lovis, Hritam Chakraborty, Elisa Delgado-Mena, Etienne Artigau, Susana C. C. Barros, Bjorn Benneke, Xavier Bonfils, Francois Bouchy, Marta Bryan, Bruno L. Canto Martins, Ryan Cloutier, Neil J. Cook, Nicolas B. Cowan, Xavier Delfosse, Rene Doyon, Xavier Dumusq…

NIRPS detection of delayed atmospheric escape from the warm and misaligned Saturn-mass exoplanet WASP-69b
Near-infrared high-resolution echelle spectrographs unlock access to fundamental properties of exoplanets, from their atmospheric escape and composition to their orbital architecture, which can all be studied simultaneously from transit observations. We present the first results of the newly commissioned ESO near-infrared spectrograph, NIRPS, from three transits of WASP-69b. We used the RM Revolutions technique to better constrain the orbital architecture of the system. We extracted the high-re…

Dielectric Properties of Single Crystal Calcium Tungstate
Elrina Hartman, Michael E Tobar, Ben T McAllister, Jeremy F Bourhill, Andreas Erb, Maxim Goryachev
https://arxiv.org/abs/2507.21662

Dielectric Properties of Single Crystal Calcium Tungstate
This investigation employed microwave whispering gallery mode (WGM) analysis to characterize the dielectric properties of a cylindrical, single-crystal sample of calcium tungstate (CaWO$_4$). Through investigation of quasi-transverse\hyp{}magnetic and quasi-transverse\hyp{}electric mode families, we can assess loss mechanisms and relative permittivity from room temperature down to cryogenic conditions. We report the biaxial permittivity values of $ε_{||} = 9.029 \pm 0.09$ and $ε_{\p…

Artist: https://www.instagram.com/p/DLQDi7wtZ5z/

Piero Masztalerz | JUST A THOUGHT on Instagram: "DIE GANZE WAHRHEIT ÜBER DEN SOMMERWELS! ❗❗ #wels #pleinfeld #polizei"
6,315 likes, 76 comments - schoenescheisse.de on June 23, 2025: "DIE GANZE WAHRHEIT ÜBER DEN SOMMERWELS! ❗❗ #wels #pleinfeld #polizei".

Water Heterostructure Photodetector for Calculation of Semiconductor Minority Carrier Lifetime
Can Wang, Renyu Yang, Huikai Zhong, Mingjia Zhi, Shisheng Lin
https://arxiv.org/abs/2507.19857

Water Heterostructure Photodetector for Calculation of Semiconductor Minority Carrier Lifetime
The minority carrier lifetime of semiconductor materials is a crucial performance parameter for optoelectronic devices. However, the existing minority carrier lifetime measurement techniques necessitate delicate optical measurement systems and harmful treatment of the samples, which will definitely cause great constraints on the further development of the semiconductor industry. Here, an off-junction graphene/water/silicon photodetector is realized based on the charming dynamic polarization pro…

Es gibt keine reine Lehre, wie sie konsequenteren Kritikerinnen der politischen Ökonomie vorgeworfen wurde von sozialdemokratischer Seite, die Dialektik da nicht wollte, wo sie den kleinbürgerlichen Vorteil sah. "Dass ausgerechnet Die Linke – die immer für sich in Anspruch nimmt, die Perspektive der Betroffenen zu berücksichtigen – es gewagt hat, sich über deren Köpfe hinweg auf eine Definition von #Antisemitismus

Phase-adaptive cooling of fringe-trapped nanoparticles at room temperature in hollow-core photonic crystal fiber
Soumya Chakraborty, Gordon K. L. Wong, Pardeep Kumar, Hyunjun Nam, Claudiu Genes, Nicolas Y. Joly
https://arxiv.org/abs/2507.17601

Phase-adaptive cooling of fringe-trapped nanoparticles at room temperature in hollow-core photonic crystal fiber
Active feedback cooling of levitated dielectric particles is a pivotal technique for creating ultrasensitive sensors and probing fundamental physics. Here we demonstrate phase-adaptive feedback cooling of silica nanoparticles optically trapped in standing-wave potential formed by two co-linearly polarized counterpropagating diffraction-free guided modes in a hollow-core photonic crystal fiber at room temperature. Unlike standard laser intensity- or Coulomb force-based feedback, our approach mod…