Results 71 to 80 of about 299,070 (304)
, 2014 The fiber with gradually changing diameter was fabricated by changing the draw ratio continuously, that is, by changing the take-up speed of melt spinning, laser drawing, and heater drawing processes.
伊藤, 章喜 +3 more
core +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source
Using Jute Fiber to Improve Fresh and Hardened Properties of Concrete
Journal of Natural Fibers, 2023 The brittle nature of concrete sometimes makes it challenging for many critical applications. Research has indicated that including discrete short-length, closely spaced fibers in concrete could improve its ductility and act as a crack arrester.
S. M. Asaduzzaman, G. M. Sadiqul Islam
doaj +1 more source
Properties of length-apodized phase-shifted lpgs operating at the phase matching turning point
, 2012 The characteristics of length-apodized phase-shifted fiber optic long period gratings with full and partial nanostructured coatings have been explored theoretically and experimentally.
Tatam, Ralph P. +2 more
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Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Single-mode fiber length for wavefront filtering
, 2008 Stellar nulling interferometry offers the possibility of direct imaging of extrasolar planets necessary for the detection of extra-terrestrial life. Achieving optimum performance from the interferometers requires that the wavefronts of light reaching the
Dasgupta, Sonali +2 more
core
Linewidth and phase noise characteristics of DFB fibre lasers
, 2004 The anomalous linewidth behavior in a DFB fiber laser is investigated. It is shown that not only does the linewidth deviate drastically from the Schawlow-Townes linewidth formula by increasing with pump and laser power, but it also varies significantly ...
Voo, N.Y. +7 more
core +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
Advanced Engineering Materials, EarlyView.A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
IEEE Access, 2020 The scattered Optical Network Units (ONUs) in an optical access network have different propagation delays. In an Ethernet passive optical network (EPON) adopting the traditional Interleaved Polling with Adaptive Cycle Time (IPACT) scheme, such ONU ...
Yunxin Lv +4 more
doaj +1 more source
Miceli. Length of Cellulose Fibers.
The Journal of the Society of Chemical Industry, Japan, 1961 繊維素繊維のミセル長については既に古くX線広角回折による子午線干渉の幅から600Å 以上の値が求められている。しかしながらこの値については理論的にも実験的にも疑義があるので,著者らはラミー繊維の正しいミセル長を求めるため,ガイガー自記式X線装置を用い粉末状,繊維状試料について反射法により,子午線(040)干渉の広角X線回折の幅からScherrer式によりミセル長を求めた。しかしながら,この2試料の結果は一致せず40Åおよび230Åと著しく異なる値を示した。この不一致の原因を究明するため,シート状の試料について同様の実験を行なって吟味したところ,(040)に(230)の干渉が混合することを知った。粉末状の試料では(040)干渉に(230)のほか更に(310),(103),(301),(212 ...
Sadayoshi WATANABE, Sadayuki INOUE
openaire +2 more sources