Results 131 to 140 of about 686,253 (308)

Oligoethylene Glycol Side‐Chain Engineering of Y6‐Derived Nonfullerene Acceptors for Thermally Induced Spontaneous Pseudo‐Planar Heterojunction Organic Photodetectors

open access: yesAdvanced Functional Materials, EarlyView.
OEG‐functionalized Y6‐derived acceptors induce thermally driven vertical phase separation, enabling pseudo‐planar heterojunction organic photodetectors. The resulting PM6:YTEG‐4F and PM6:YTEG‐4Cl organic photodetectors suppress dark current density by approximately 260‐fold and 210‐fold, respectively, while maintaining efficient photoresponse ...
Se Jeong Park   +11 more
wiley   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

Graded Metallopolymer Structures with Shape‐Memory Abilities via DLP‐Based 3D‐Printing

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the digital light processing (DLP) based 3D printing of graded metallopolymers featuring shape‐memory abilities. The permanent shape can be recovered in two distinct steps with excellent rates. The obtained graded prints range from simple rod‐like structures to complex hollow materials.
Michael Klein   +6 more
wiley   +1 more source

KETIDAKSAMAAN PADA FUNGSI Q-GAMMA

open access: yes, 2012
Alsina and Tomas (2005) discuss about inequaty of the gamma function by geometricalapproach. Sandor (2005) and Baiduri (2008) discuss about some inequalities that involves the gammafunction based on the series representaion of psi function.
., Baiduri
core   +1 more source

Proof-of-principle Study of Photon-nuclear Transmutation Based on 7Li (p,γ)8Be Reaction

open access: yesYuanzineng kexue jishu
With the development of economy, there is an increasing need of nuclear energy, which means that nuclear waste transmutation is becoming more and more important.
YE Shan1, LIU Fulong1, BO Nan1,2,3, WANG Haoran1,2,3, CHENG Hao1, LI Hongwei1, WU Di1, YANG Wansha1,2,3, WEI Jihong1,2,3, MA Tianli1, FAN Qiwen1, WANG Zhiqiang1, LIU Yina1, SONG Mingzhe1, LIU Yuntao1, HE Chuangye1, GUO Bing1
doaj   +1 more source

Cosmic gamma rays [PDF]

open access: yes, 1971
Cosmic gamma ray production processes, galactic and extragalactic gamma rays, and ...
Stecker, F. W.
core  

Structure‐Guided Balancing of Ambipolar Transport Enables Symmetric Switching in Heterojunction Bilayer Organic Transistor Inverters

open access: yesAdvanced Functional Materials, EarlyView.
Balancing the spatially separated p‐ and n‐type transport pathways in heterojunction‐bilayer OTFTs enables symmetric inverter switching (VM ≈ 0.5VDD), whereas discrete integration of unipolar OTFTs gives polarity‐dependent and resistive responses. ABSTRACT High inverter performance in ambipolar organic electronics requires balanced channel strengths ...
Sohyun Choi   +3 more
wiley   +1 more source

Multimessenger Emission by Magnetically Arrested Disks and Relativistic Jets of Black Hole X-Ray Binaries

open access: yesThe Astrophysical Journal
Black hole X-ray binaries (BHXBs) are observed in various wavelengths from radio to GeV gamma rays. Several BHXBs, including MAXI J1820+070 and Cygnus X-1, are also found to emit ultrahigh-energy (UHE; photon energy > 100 TeV) gamma rays.
Riku Kuze, Shigeo S. Kimura, Ke Fang
doaj   +1 more source

Search for long-term variability of HESS J1745-290

open access: yesAstronomy & Astrophysics
At the center of our Galaxy lies the bright γ-ray point-like source HESS J1745-290, which is compatible in position with Sgr A⋆, although an association between the two remains uncertain.
Acharyya A.   +116 more
doaj   +1 more source

Gamma-rays, cosmic rays, and galactic structure [PDF]

open access: yes, 1976
The relation of SAS-2 observations of galactic gamma-rays to the large scale distribution of cosmic rays and interstellar gas in the galaxy is reviewed.
Stecker, F. W.
core  

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