Results 121 to 130 of about 43,858 (281)

The Qz5 Survey. I. How the H i Mass Density of the Universe Evolves with Cosmic Time

The Astrophysical Journal
We report that the neutral hydrogen (H i ) mass density of the Universe ( ρ _H _i ) increases with cosmic time since z  ∼ 5, peaks at z  ∼ 3, and then decreases toward z  ∼ 0. This is the first result of Qz5, our spectroscopic survey of 63 quasars at z  ≳
Grecco A. Oyarzún, Marc Rafelski, Lise Christensen, Fiona Ozyurt, Regina A. Jorgenson, M. Neeleman, Michele Fumagalli, J. Xavier Prochaska, G. Worseck, M. E. Wisz, George D. Becker, Sebastián López   +11 more
doaj   +1 more source

Recent Progress on Fullerene–Based Functional Materials for Energy Conversion

Carbon Energy, EarlyView.
A schematic illustration summarizing the classification, and photo‐/electro‐‐/thermo‐catalysis and energy storage applications of C60 and derivatives. ABSTRACT Efficient energy conversion and environmental protection are still constrained by rapid carrier recombination, unstable interfaces, limited active site, and so on. Owing to the unique electronic
Ying Jiang, Bo Wu, Chunru Wang
wiley   +1 more source

Detection of Molecular Clouds in the PeVatron Candidate Source LHAASO J0341+5258 by the Nobeyama 45-m Radio Telescope

The Astrophysical Journal
We report a new CO observation survey of LHAASO J0341+5258, using the Nobeyama Radio Observatory 45-m telescope. LHAASO J0341+5258 is one of the unidentified ultra-high-energy (UHE; E > 100 TeV) gamma-ray sources detected by LHAASO.
Naomi Tsuji, Shunya Takekawa, Kaya Mori, Alison Mitchell, Shuo Zhang, Priyadarshini Bangale, Stephen DiKerby, Tülün Ergin, Jooyun Woo, Samar Safi-Harb, Shinta Kasuya   +10 more
doaj   +1 more source

Structure‐Function Tailoring of Plasmonic Nanomaterials for Thin‐Film Photovoltaics

Carbon Energy, EarlyView.
This review discusses the mechanisms and recent advancements of plasmonics in achieving effective light management to enhance the performance of thin‐film solar cells. It highlights applications in high‐performance perovskite solar cells and future‐oriented tandem solar cells.
Sen Jiang, Wenhan Yang, Annan Zhu, Yuexin Lin, Zhaohui Xie, Ran Chen, Wenjing Zhu, Jin Liu, Yingjie Zhu, Wenye Jiang, Zhiyuan Gu, Kaiyang Wang, Shengchun Yang, Nan Zhang, Chao Liang   +14 more
wiley   +1 more source

Key Challenges for Commercializing Perovskite–Silicon Tandem Solar Cells

Carbon Energy, EarlyView.
This review discusses the scientific and technological challenges in advancing perovskite–silicon tandem solar cells (PSTSCs) from lab‐scale to commercial viability, focusing on long‐term stability, scalability, and economic feasibility. Key issues include intrinsic and extrinsic degradation factors, installation conditions, environmental impacts, and ...
Bilal Mehmood, Yuanyuan Qin, Abdul Sattar, Rabeea Eman, Faheem Abbas, Shan Wu, Yipeng Xu, Xu Zheng, Jiangying Lu, Wei Jiang, Jiankai Liu, Shudi Lu, Shizhong Yue, Zhijie Wang, Kong Liu, Xiaopeng Zheng, Shengchun Qu   +16 more
wiley   +1 more source

H I Absorption Line and Anomalous Dispersion in the Radio Pulses of PSR B1937+21

The Astrophysical Journal
We use the Five-hundred-meter Aperture Spherical radio Telescope to observe the bright millisecond pulsar PSR B1937+21 (J1939+2134) and record the data in the band from 1.0 to 1.5 GHz.
Jinchen Jiang, Shunshun Cao, Kejia Lee, Bojun Wang, Heng Xu, Siyuan Chen, Yanjun Guo, Peng Jiang, Weicong Jing, Jiguang Lu, Jiangwei Xu, Renxin Xu, Zihan Xue   +12 more
doaj   +1 more source

A search for intergalactic clouds of neutral hydrogen [PDF]

Monthly Notices of the Royal Astronomical Society, 1979
J. Materne, W. K. Huchtmeier, A. N. M. Hulsbosch   +2 more
openaire   +1 more source

THE MATHEMATICAL MODELING OF THE PROCESS OF NEUTRALIZATION CLOUDS OF HYDROGEN CYANIDE

Science and Transport Progress, 2008
A computer model to calculate the neutralization of НСN cloud is proposed. The model is based on the numerical integration of the 3-D gradient transport model. The results of numerical experiment are presented.
openaire   +1 more source

Inorganic‐Directed Charge Delocalization Channels: Boosting Uniform Charge Distribution and Rapid Na+ Transport for Solid‐State Sodium Metal Batteries

Carbon Energy, EarlyView.
This work develops a PM@PN composite solid electrolyte via inorganic‐induced organic molecular reconstruction. It constructs continuous interfacial ion superhighways, enables uniform Na+ deposition, and significantly enhances ionic conductivity and electrochemical stability for all‐solid‐state sodium metal batteries.
Jiaze Li, Rong Yang, Aoyi Jiang, Xiaobin Li, Qianwei Zhang, Xin Dong, Hongyu Shang, Ying Liu, Yinglin Yan, Yunhua Xu, Jae‐Kwang Kim, Jou‐Hyeon Ahn   +11 more
wiley   +1 more source

Science Opportunities for IMAP-Lo Observations of Interstellar Neutral Hydrogen and Deuterium during a Maximum of Solar Activity

The Astrophysical Journal Supplement Series
Direct-sampling observations of interstellar neutral gas, including hydrogen and deuterium, have been performed for more than one cycle of solar activity by IBEX.
M. A. Kubiak, M. Bzowski, E. Möbius, N. A. Schwadron   +3 more
doaj   +1 more source