Results 111 to 120 of about 5,436 (198)

Gaseous optical contamination of the spacecraft environment: A review [PDF]

Interactions between the ambient atmosphere and orbiting spacecraft, sounding rockets, and suborbital vehicles, and with their effluents, give rise to optical (extreme UV to LWIR) foreground radiation which constitutes noise that raises the detection ...
Kofsky, I. L., Maris, M. A., Murad, E., Tran, N. H.   +3 more
core   +1 more source

Achieving High‐Performance Organic Long Persistent Luminescence Materials via Manipulation of Radical Cation Stability

Advanced Science
Organic long persistent luminescence (OLPL) materials, with their hour‐long afterglow, hold great promise across numerous applications, yet their performance lags behind that of inorganic counterparts.
Hongxin Gao, Guangming Wang, Tengyue Wang, Zi Ye, Qianqian Yan, Qianhui Chong, Chin‐Yiu Chan, Biaobing Wang, Kaka Zhang   +8 more
doaj   +1 more source

Full-color, time-valve controllable and Janus-type long-persistent luminescence from all-inorganic halide perovskites

Nature Communications
Long persistent luminescence (LPL) has gained considerable attention for the applications in decoration, emergency signage, information encryption and biomedicine.
Tianhong Chen, Dongpeng Yan
doaj   +1 more source

Development of the Universe and New Cosmology

, 2003
Cosmology is undergoing an explosive period of activity, fueled both by new, accurate astrophysical data and by innovative theoretical developments. Cosmological parameters such as the total density of the Universe and the rate of cosmological expansion ...
Hofer, H., Sakharov, A. S.
core   +2 more sources

Twofold rigidity activates ultralong organic high-temperature phosphorescence

Nature Communications
A strategy is pioneered for achieving high-temperature phosphorescence using planar rigid molecules as guests and rigid polymers as host matrix. The planar rigid configuration can resist the thermal vibration of the guest at high temperatures, and the ...
Kaijun Chen, Yongfeng Zhang, Yunxiang Lei, Wenbo Dai, Miaochang Liu, Zhengxu Cai, Huayue Wu, Xiaobo Huang, Xiang Ma   +8 more
doaj   +1 more source

Engineering room‐temperature phosphorescence in purely organic materials through isomeric molecular packing and intermolecular interactions

FlexMat
Achieving control over room‐temperature phosphorescence (RTP) performance through delicate molecular engineering and intermolecular interactions is of great significance for advancing RTP research. In this study, a series of isomers containing up to four
Mengke Li, Zijian Chen, Kunkun Liu, Qianyu He, Shi‐Jian Su   +4 more
doaj   +1 more source

Origins and Early Development of the Nonlinear Endogenous Mathematical Theory of the Business Cycle: Part I - The Setting [PDF]

We study the emergence of the nonlinear, endogenous, theory of the business cycle, in mathematical modes, within the framework of a macroeconomic theory, which was itself going through its own formal 'birth pangs' at the same time, in the same years. The
K. Vela Velupillai, V. Ragupathy
core  

Water‐soluble phosphorescent polymers with time‐dependent organic afterglow covering a broad spectrum

FlexMat
Materials exhibiting a time‐dependent organic afterglow across a broad spectrum have significant potential in various photonic applications, yet achieving this remains a challenge.
Juan Wei, Congkai Chen, Min Xiao, Jingxue Hu, Guohui Xing, Shujuan Liu, Yun Ma, Qiang Zhao   +7 more
doaj   +1 more source

Medium and atmospheric pressure plasma treatment for improvement of adhesion of PDMS used for flexible and stretchable electronics [PDF]

, 2008
Axisa, Fabrice, De Geyter, Nathalie, De Leersnyder, Eva, De Smet, Nele, Gengembre, Léon, Leys, Christophe, Morent, Rino, Rymarczyk-Machal, Monika, Schacht, Etienne, Vanfleteren, Jan   +9 more
core   +2 more sources

The production of atoms and simple radicals in glow discharges [PDF]

Chemical mechanism of alternating and direct current electrodeless ...
Kaufman, F.
core   +1 more source