Results 81 to 90 of about 46,457 (297)

Quantum isolated horizons and black hole entropy

, 2012
We give a short introduction to the approaches currently used to describe black holes in loop quantum gravity. We will concentrate on the classical issues related to the modeling of black holes as isolated horizons, give a short discussion of their ...
G., J. Fernando Barbero, Lewandowski, Jerzy, Villaseñor, Eduardo J. S.   +2 more
core   +1 more source

Additive‐Driven Phase Control for Stable and Efficient CsPbI₃ Solar Cells Via Ambient Low‐Temperature Processing

Advanced Functional Materials, EarlyView.
CsPbI₃ perovskite solar cells face stability issues due to high annealing temperatures and moisture. Butylammonium acetate (BAAc) enables stable phase formation at 160°C in ambient laboratory conditions, enhancing efficiency and stability, achieving 18.6% PCE, and maintaining over 81% efficiency after 1,000 hours of maximum power point tracking under 1
Narendra Pai, Aaron Seeber, Wen Liang Tan, Luke J. Sutherland, Chris Easton, Wenqi Yan, Yogesh Gulia, Yesim Gozukara, Jueng‐Eun Kim, Mei Gao, Dechan Angmo   +10 more
wiley   +1 more source

Unlock the Walnut: How a Pectin‐Rich Suture Tissue and Moisture‐Driven Crack Formation Induce Shell Splitting and Facilitate Seed Germination

Advanced Functional Materials, EarlyView.
Walnut seeds are enclosed in a remarkably strong shell made of sclerenchyma, separated by a pectin‐rich suture tissue. Different cell shapes and chemical composition of this tissue point to an opening mechanism, which is triggered by cyclic humidity changes.
Sebastian J. Antreich, Nannan Xiao, Martin Felhofer, Notburga Gierlinger   +3 more
wiley   +1 more source

Spartan Daily, March 12, 1999 [PDF]

, 1999
Volume 112, Issue 32https://scholarworks.sjsu.edu/spartandaily/9389/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +2 more sources

Role of electric charge in shaping equilibrium configurations of fluid tori encircling black holes

, 2011
Astrophysical fluids may acquire non-zero electrical charge because of strong irradiation or charge separation in a magnetic field. In this case, electromagnetic and gravitational forces may act together and produce new equilibrium configurations, which ...
B. Punsly, Claudio Cremaschini, D. Vokrouhlický, D. B. Melrose, F. Reif, J. Bičák, J. Frank, Jiří Kovář, John C. Miller, M. Kozłowski, M. A. Abramowicz, Petr Slaný, R. M. Wald, S. C. Tripathy, T. Neukirch, V. Balek, Vladimír Karas, Z. Stuchlík, Z. Stuchlík, Z. Stuchlík, Zdeněk Stuchlík   +20 more
core   +1 more source

Emergence of Light‐Transforming Layered Hybrid Halide Perovskites

Advanced Functional Materials, EarlyView.
The emerging class of light‐transforming layered halide perovskite materials is reviewed, outlining challenges for their development and perspectives toward application in the future. Abstract Layered hybrid halide perovskites (LHPs) have attracted considerable attention in optoelectronics.
Ghewa AlSabeh, Jovana V. Milić
wiley   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source

Quasinormal modes of dS and AdS black holes: Feedforward neural network method [PDF]

, 2021
Ali Övgün, İzzet Sakallı, Halil Mutuk   +2 more
openalex   +1 more source

Black hole attack behavioral analysis general network scalability

Indonesian Journal of Electrical Engineering and Computer Science, 2019
<span style="font-size: 9pt; font-family: 'Times New Roman', serif;">A mobile ad hoc network (MANET) is a frameworkless system of different mobile devices known for its self-arranging conduct. MANETs can convey over moderately data transfer capacity compelled routing connections.
Dulaimi, Layth A. Khalil Al, Ahmad, R.Badlishah, Yaakob, Naimah, Yusoff, Mohd Hafiz, Elshaikh, Mohamed   +4 more
openaire   +3 more sources

Tailored Reconstruction of Polycrystalline CuO Nanorods Promotes C─C Coupling in CO2 Electroreduction

Advanced Functional Materials, EarlyView.
Controlling the polycrystallinity of CuO nanorods enables directional reconstruction into rod‐like structures that stabilize Cu(OH)2 and increase Cu+ ratios, while modulating interfacial water dynamics to enhance C─C coupling and boost C2+ product formation in CO2 electroreduction.
Hyeon‐Seok Bang, Young‐Jin Ko, Hyo Sang Jeon, Eugene Huh, Eung Dab Kim, Min Gwan Ha, Chulwan Lim, Jiho Jeon, Seohyeon Ka, Dogyeong Kim, Xiaojie Zhang, Yeongjin Kim, Kyeongsu Kim, Woong Hee Lee, Jae‐Young Choi, Hyung‐Suk Oh   +15 more
wiley   +1 more source