Results 131 to 140 of about 120,351 (278)

An Empirical Measure of the Rate of White Dwarf Cooling in 47 Tucanae

, 2012
We present an empirical determination of the white dwarf cooling sequence in the globular cluster 47 Tucanae. Using spectral models, we determine temperatures for 887 objects from Wide Field Camera 3 data, as well as 292 objects from data taken with the ...
Bergeron, P., Dotter, A., Goldsbury, R., Heyl, J., Kalirai, J. S., MacDonald, J., Rich, R. M., Richer, H. B., Stetson, P. B., Tremblay, P. -E., Woodley, K. A.   +10 more
core   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

Advanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung, Sung Yoon Min, Byungsoo Kang, Yongseok Yoo, Jihun Jang, Yeoun‐Woo Jang, Hyojeong Choi, Hyeong Won Lee, Swarup Biswas, Yongju Lee, Mansoo Choi, Phillip Lee, Min Seok Jang, Hyeok Kim, Shu Yang   +14 more
wiley   +1 more source

The 3D Kinematics of the Orion Nebula Cluster. II. Mass-dependent Kinematics of the Inner Cluster

The Astrophysical Journal
We present the kinematic analysis of 246 stars within $4^{\prime} $ from the center of Orion Nebula Cluster (ONC), the closest massive star cluster with active star formation across the full mass range, which provides valuable insights in the formation ...
Lingfeng Wei, Christopher A. Theissen, Quinn M. Konopacky, Jessica R. Lu, Chih-Chun Hsu, Dongwon Kim   +5 more
doaj   +1 more source

Stabilized Intermediate Phase Via Pseudo‐Halide Anions Toward Highly Efficient and Light‐Soaking Stable Perovskite Solar Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The formate pseudo‐halide anion is strategically introduced at the buried interface to stabilize the intermediate phases formed during perovskite crystallization. The controlled crystallization enhances crystallinity and alleviates tensile strain, eliminating residual PbI2 near the buried interface.
Jongdeuk Seo, Yun Seop Shin, Dong Gyu Lee, Jaehwi Lee, Jina Roe, Jung Geon Son, Woojin Lee, Yeonjeong Lee, Dongmin Lee, Ji Won Song, Tae Kyung Lee, Dong Suk Kim, Jin Young Kim   +12 more
wiley   +1 more source

A Type Ia Supernova near a Globular Cluster in the Early-type Galaxy NGC 5353

The Astrophysical Journal Letters
No progenitor of a Type Ia supernova (SN Ia) is known, but in old-population early-type galaxies, one may find SNe Ia associated with globular clusters, yielding a population age and metallicity.
Joel N. Bregman, Oleg Y. Gnedin, Patrick O. Seitzer, Zhijie Qu   +3 more
doaj   +1 more source

Immersive virtual reality-based learning as a supplement for biomedical engineering labs: challenges faced and lessons learned

Frontiers in Medical Technology
IntroductionImmersive virtual reality (VR) based laboratory demonstrations have been gaining traction in STEM education as they can provide virtual hands-on experience.
Ishita Tandon, Vitali Maldonado, Megan Wilkerson, Amanda Walls, Raj R. Rao, Mostafa Elsaadany   +5 more
doaj   +1 more source

Identification of Type Ia Supernovae at Redshift 1.3 and Beyond with the Advanced Camera for Surveys on the Hubble Space Telescope [PDF]

, 2004
Adam G. Riess, Louis-Gregory Strolger, J. Tonry, Z. Tsvetanov, Stefano Casertano, Henry C. Ferguson, Bahram Mobasher, Peter Challis, N. Panagia, A. V. Filippenko, Weidong Li, R. Chornock, R. Kirshner, B. Leibundgut, Mark Dickinson, Anton M. Koekemoer, Norman A. Grogin, Mauro Giavalisco   +17 more
openalex   +1 more source

Joule‐Assisted Nanotherapeutic Urethral Stent (JANUS) for Spatiotemporal Theragenerative Treatment of Urethral Strictures

Advanced Functional Materials, EarlyView.
Joule‐assisted nanotherapeutic urethral stent harnesses a smart, biodegradable magnesium stent to orchestrate spatiotemporal theragenerative therapy for urethral strictures. Magnetically induced Joule heating enables on‐demand drug release and bacterial ablation, while simultaneously guiding urothelial regeneration.
Yuhyun Na, Yubeen Park, Hyun Lee, Song Hee Kim, Seojoon Bang, Hyeong Seok Kang, Chan Ho Moon, Ju Yeong Gwon, Jong Hwa Seo, Min‐Ho Kang, Soo‐Hong Lee, Gi Doo Cha, Wooram Park, Heemin Kang, Jung‐Hoon Park, Hyun‐Do Jung   +15 more
wiley   +1 more source

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

Advanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun, Muhammad Usman Farid, Wenlong Xi, Gang Lu, Min Wei Boey, Sai Kishore Ravi, Patrick H.‐L. Sit, Alicia Kyoungjin An   +7 more
wiley   +1 more source

Ultra‐Sensitive, Self‐powered, CMOS‐Compatible Near‐Infrared Photodetectors for Wide‐Ranging Applications

Advanced Functional Materials, Volume 35, Issue 14, April 3, 2025.
Ferroelectric ZrO2 films grown by sputtering on Si, show strong near‐infrared (NIR) detection capability. The performance is shown to arise from the pyroelectric effect, combined with the ferroelectric effect in ZrO2, and the photovoltaic effect in Si.
Nuno E. Silva, Ampattu R. Jayakrishnan, Adrian Kaim, Katarzyna Gwozdz, Leonardo Domingues, J. S. Kim, Marian C. Istrate, Corneliu Ghica, Mario Pereira, Luís Marques, M. J. M. Gomes, Robert L. Z. Hoye, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source