Results 71 to 80 of about 30,955 (249)

The Structure of Isothermal, Self-gravitating Gas Spheres for Softened Gravity

, 1996
A theory for the structure of isothermal, self-gravitating gas spheres in pressure equilibrium in a softened gravitational field is developed. The one parameter spline softening proposed by Hernquist & Katz (1989) is used.
Bate M. R., Bonner W. B., Ebert R., Efstathiou G., Evrard A. E., Gingold R. A., Henrik Vedel, Jesper Sommer‐Larsen, Monaghan J. J., Romeo A. B., Uffe Hellsten, Vedel H.   +11 more
core   +1 more source

Passive Radiative Cooling Materials and Their Applications

Journal of Physics: Conference Series
Abstract Passive radiative cooling naturally lowers the temperature of a cooler by reflecting sunlight and emitting heat into the frigid expanse of universe. While certain natural and synthetic substances may exhibit distinct radiative properties, their radiative efficiency remains minimal.
Rongrong Jia, Baohai Gao, Mingjian He, Yatao Ren, Hong Qi   +4 more
openaire   +1 more source

Localized Temperature Monitoring in Mouse Brain during Light Delivery via a Non‐Planar Tapered Fiber‐Integrated µRTD Sensor

Advanced Materials, EarlyView.
We report a multifunctional tapered optical fiber integrating a conformal micro‐resistance temperature detector (µRTD) for local, real‐time thermometry during optical stimulation. The platform combines light‐delivery and temperature sensing within a minimally invasive footprint, enabling detection of sub‐degree cortical heating under representative ...
Antonio Balena, Marco Bianco, Barbara Spagnolo, Muhammad Fayyaz Kashif, Alberto Bramati, Massimo De Vittorio, Ferruccio Pisanello   +6 more
wiley   +1 more source

Removal and mixing of the coronal gas from satellites in galaxy groups: cooling the intragoup gas

, 2012
The existence of an extended hot gaseous corona surrounding clusters, groups and massive galaxies is well established by observational evidence and predicted by current theories of galaxy formation.
Agertz, Anderson, Anderson, Bauer, Baugh, Binney, Binney, Borgani, Boylan-Kolchin, Boylan-Kolchin, Chandrasekhar, Ciotti, Colella, Cowie, Crain, Dai, Diemand, Drazin, Fakhouri, Fryxell, Fukugita, Fukugita, Gan, Gao, Gnat, Gunn, Heinz, Heitsch, Hester, Jesús Zavala, Kazantzidis, Keres, Kogure, Li, Malagoli, Marinacci, Mathews, Mathews, McCarthy, Michael L. Balogh, Mitchell, Mo, Mori, Moster, Murray, Navarro, Navarro, Neto, Niayesh Afshordi, Nipoti, Nipoti, Nulsen, Rasmussen, Ricker, Sakelliou, Spitzer, Springel, Springel, Springel, Springel, Stephen Ro, Stevens, Sun, Taylor, van de Voort, Vietri, Vikhlinin, Vikhlinin, Vogelsberger, von Neumann, Wetzel, White, White, Zentner   +73 more
core   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source

Star Formation for Predictive Primordial Galaxy Formation

, 2015
The elegance of inflationary cosmology and cosmological perturbation theory ends with the formation of the first stars and galaxies, the initial sources of light that launched the phenomenologically rich process of cosmic reionization. Here we review the
Milosavljevic, Milos, Safranek-Shrader, Chalence   +1 more
core   +1 more source

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

The Effect of the AGN Feedback on the Interstellar Medium of Early-Type Galaxies: 2D Hydrodynamical Simulations of the Low-Rotation Case

, 2016
We present 2D hydrodynamical simulations for the evolution of early-type galaxies containing central massive black holes (MBHs), starting at age 2 Gyr. The code contains accurate and physically consistent radiative and mechanical AGN wind feedback, with ...
Ciotti, L., Negri, A., Ostriker, J. P., Pellegrini, S.   +3 more
core   +3 more sources

Data‐Driven Discovery of Quaternary Ammonium Interlayers for Efficient and Thermally Stable Perovskite Solar Cells

Advanced Materials, EarlyView.
An active learning framework, grounded in independently generated in‐house experimental data, enables reliable discovery of high‐performance interfacial materials for perovskite solar cells. Iterative model refinement autonomously converges toward structurally robust quaternary ammonium architectures, establishing a new design principle for interfacial
Jongbeom Kim, Yang Jeong Park, Chaehoon Jeon, Nahye Shin, Jaewang Park, Seungun Lee, Jino Im, Sungroh Yoon, Sang Il Seok   +8 more
wiley   +1 more source

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source