Results 51 to 60 of about 3,214,955 (326)
Effect of Silane Coupling Agents on Cotton Fibre Finishing
Journal of Natural Fibers, 2022 Five different silane coupling agents such as vinyltrimethoxysilane (VTMS), vinyltriethoxysilane (VTES), trimethoxysilylpropylmethacrylate (TSPM), glycidoxypropyltriethoxysilane (GPTES) and aminopropyltriethoxysilane (APTES) were used for the surface ...
Md. Ibrahim H. Mondal +2 more
doaj +1 more source
High Efficiency Coupling Technology of Silicon Photonic Modulator and Single-Mode Optical Fiber
Guangtongxin yanjiu, 2021 Due to the small mode field of silicon photonic chips, the large coupling loss is a road-blocker for their applications. In this work, the coupling efficiency between a silicon photonic modulator chip and a single-mode optical fiber is investigated.
Zhong-xiang TAN +5 more
doaj +1 more source
Ultralow-threshold microcavity Raman laser on a microelectronic chip [PDF]
, 2004 Using ultrahigh-Q toroid microcavities on a chip, we demonstrate a monolithic microcavity Raman laser. Cavity photon lifetimes in excess of 100 ns combined with mode volumes typically of less than 1000 µm^3 significantly reduce the threshold for ...
Armani, D. K. +3 more
core +1 more source
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
IEEE Photonics Journal, 2014 We report an enhancement of coupling efficiency between an optical fiber and graphene photonic device integrated on a silicon photonics platform. The design and optimization of selective spot-size converters (SSSCs) enables low coupling losses of 1.4 dB ...
Rai Kou +7 more
doaj +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
IEEE Photonics Journal, 2018 We present a method to analyze the fiber coupling efficiency η of electromagnetic Gaussian Schell-model (EGSM) beams propagating through marine atmospheric turbulence. The expression for η is derived from the relation of field distributions
Lin Yu, Yixin Zhang
doaj +1 more source
Heliyon, 2023 The Langevin equation (LE) is used to evaluate mode coupling in multimode step-index polymer optical fiber (SI POF) that is both unstrained and strained.
Svetislav Savović +3 more
doaj +1 more source
Chromatin: a tunable spring at work inside chromosomes
, 2001 This paper focuses on mechanical aspects of chromatin biological functioning. Within a basic geometric modeling of the chromatin assembly, we give for the first time the complete set of elastic constants (twist and bend persistence lengths, stretch ...
A. E. H. Love +50 more
core +1 more source
Free-space to few-mode-fiber coupling under atmospheric turbulence.
Optics Express, 2016 High speed free space optical communication (FSOC) has taken advantages of components developed for fiber-optic communication systems. Recently, with the rapid development of few-mode-fiber based fiber communication systems, few-mode-fiber components ...
D. Zheng +6 more
semanticscholar +1 more source