Organic light-emitting devices (OLEDs) emitting near-infrared (NIR) light have many potential applications, yet the efficiency of these devices remains very low, typically ∼0.1% or less. Here we report efficiency NIR...
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Nanostructured yttria-stabilized zirconia powder (fully and partially stabilized) was densified using simultaneous applied current and pressure using varying displacement control rates for pressure application. The va...
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Traditional vacuum-based thermal energy conversion (VTEC) devices with "flat" metal emitters have been compromised by high working temperature mainly due to high work function and electron space charge effec...
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Silk nanofibers were successfully prepared by electrospinning an aqueous solution of regenerated silk fibroin (RSF, from Bombyx mori) with higher molecular weight. Many factors, such as concentration, electrical condu...
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This paper reports a novel fully-disposable, cost-effective microfluidic actuation system requires no fluidic interfacing, and minimal electric connections. The device is constructed of multiple polydimethylsiloxane (...
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Nanoscale quantum dot-antibody conjugates have been shown to self-assemble to form micron-scale aggregates in the presence of specific proteomic *** self-assembly process exhibits sigmoidal kinetics,suggesting that nu...
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Nanoscale quantum dot-antibody conjugates have been shown to self-assemble to form micron-scale aggregates in the presence of specific proteomic *** self-assembly process exhibits sigmoidal kinetics,suggesting that nucleation limits ***-assembly kinetics in this study is characterized by flow cytometric analysis of the aggregation reaction over time.A range of physiologically relevant concentrations of the protein angiopoietin-2,a candidate cancer biomarker,are incubated with quantum dots conjugated with a polyclonal mixture of anti-angiopoietin-2 *** concentration modulates the slopes and inflection times of the sigmoidal kinetics *** understanding of self-assembly kinetics in this system may lead to improvements in sensitivity and specificity of this novel proteomic biomarker detection technique and improve the screening,diagnostics,and therapy response monitoring for cancers and other *** approach to studying the kinetics of nanoparticle self-assembly may also provide a valuable tool for understanding the fundamental characteristics of nanoscale particle aggregation.
Organic light-emitting devices (OLEDs) emitting near-infrared (NIR) light have many potential applications, yet the efficiency of these devices remains very low, typically ˜0.1% or less. Here we report efficiency NIR ...
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Organic light-emitting devices (OLEDs) emitting near-infrared (NIR) light have many potential applications, yet the efficiency of these devices remains very low, typically ˜0.1% or less. Here we report efficiency NIR OLEDs based on two fluorescent donor-acceptor-donor oligomers and a phosphorescent Pt-containing organometallic complex. External quantum efficiencies in the range of 0.5–3.8% with emission peak ranging from 700 to 890 nm have been achieved.
Carbon dioxide (CO2) corrosion of carbon steel in the presence of brine has been a recognized problem in oil production for many years and it is becoming more common with the extensive use of CO2-flooding as an oil re...
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Mass optimization studies of potential upper and lower axial shields for the Affordable Fission Surface Power System are described in detail and a complete shield is developed to meet the radiation dose requirements o...
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ISBN:
(纸本)9781615673506
Mass optimization studies of potential upper and lower axial shields for the Affordable Fission Surface Power System are described in detail and a complete shield is developed to meet the radiation dose requirements of 10 14 n/cm2 fast (E>1 MeV) neutron fluence and 2 Mrad gamma dose at the Stirling power converters and 5 rem/yr at a lunar outpost located 1 km from the center of the reactor. The upper and lower axial shield sections are developed separately, and then combined with the previously developed radial sections to produce a complete shield. Complete lithium hydride, borated water and boron carbide shields are developed. Lithium hydride yields the lightest complete shield at 6215 kg, followed by the borated water shield at 6663 kg, and the boron carbide shield at 8315 kg.
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