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serpentine film concentration

Modeling of vanadium redox flow battery and electrode

But in the serpentine flow channel case, the battery performance increases a lot due to good mass transport with a larger fiber diameter setting. We also check the average electrolyte velocity in electrode and pressure drop between inlet and outlet of interdigitated and serpentine flow channel case, as shown in Table 4. The average …

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Flexible and stretchable power sources for wearable electronics

The active layer solution was made with 1:3.7 PCDTBT (Saint-Jean Photochimie)/PC 71 BM (Solaris), with total concentration of 21 mg/ml, in o-dichlorobenzene with 5% dimethyl sulfoxide. After heating overnight at 80°C to dissolve, the active layer solution was spin-cast in the glove box at 1250 rpm to form a film with …

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Self-assembled gold nanoparticles on the serpentine

FESEM images of CT-DNA film exhibit complex pattern of serpentine networks. • SERS active substrate used for thiram detection at ultrasensitive concentration. Abstract. Fabrication of efficient SERS active substrates from the Langmuir-Blodgett (LB) films of Calf Thymus-DNA (CT-DNA) molecule after incubation into gold nanocolloid for …

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Immersive exhibitions: the future of art or overpriced …

Out of this world … Dominique Gonzalez-Foerster's Alienarium 5 at the Serpentine Gallery, London. Photograph: Guy Bell/Rex/Shutterstock. The Serpentine's exhibitions are free to the public ...

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Serpentine | NOWNESS

Named among Forbes' 30 Under 30 list in 2021, Vik approaches Serpentine with an emphasis on the surreal, setting the action against grandiose modernist architecture, and saturated with an emerald glow. As an ambassador for the White Ribbon campaign, a global movement working to end violence against women and children, she employs the film to …

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Highly sensitive and stretchable strain sensors based on serpentine

Benefitting from the synergistic effect of GNPs/MWCNTs 3D hybrid conductive networks and the serpentine-shaped tensile strain sensing film, our strain sensor can achieve a high sensitivity with the gauge factor as high as 6.3 within the range of 40%, 40.1 in the strain range of 40–90%, and 2675.5 up to 100% strain, and a rapid response time ...

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Serpentine Dance Films — Cinematary

The serpentine dance films captured a dance popularized by Fuller and furthered by other stage performers of the time in which an actress would stand centrally on the stage with a flowing dress and move and twirl, allowing light, color, and fabric to create visually enchanting films and stage performances. A movement en vogue at the turn of …

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Integration of patterned electrolyte film and

Integration of patterned electrolyte film and sacrificial substrate serpentine electrode of low curvature for high stretch supercapacitor, physiological signal detection. ... [24], [25], [26]. By reducing the stress concentration of the electrode structure under repeated folding and severe deformation, the deformation resistance and stability ...

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Silica nanoparticles as pesticide against insects of different

There was a significant interaction between insect species/guild nested within plant species and the concentration of silica NPs; slopes of concentration-dependent increases in percentage ...

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Moisture-resistant, stretchable NOx gas sensors based on laser …

The NO concentration in the exhaled breath of asthma patients exceeds hundreds of parts per billion (ppb), whereas the level is less than several tens of ppb for healthy subjects 15,16,17,18,19,20.

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Mechanisms of polymeric film formation

Contact angles provide information regarding the interactions between the substrate and the coating solution (i.e. wettability). Contact angle measurements also provide a qualitative indication of film adhesion after film formation is complete (Felton and McGinity, 1999).Coating formulation variables and substrate surface characteristics have …

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Thin-Film Superelastic Alloys for Stretchable Electronics

Sections. Conductive serpentine interconnects comprise fundamental building blocks (e.g., electrodes, antennas, wires) of many stretchable electronic …

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Taylor Flow in Microchannels: A Review of Experimental and

deals with Taylor flow, for which the walls are covered by a liquid film, and therefore this effect is unimportant, except possibly in the mixing region where the gas and liquid are brought into contact. 2.2.4. Laminar Flow In microchannels the Reynolds numbers are relatively low so that laminar flow is much more common than turbulent flow.

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Thermodynamic evidence of giant salt deposit formation by

Serpentine is the most important product of the reaction (~25 wt%), followed by quartz (5%) and salts, except under two conditions: at 25 °C and pCO 2 values of 1.01325 and 10.1325 MPa.

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Bendable Electro-chemical Lactate Sensor Printed with …

Moment of inertial is proportional to cross-sectional area and serpentine shaped film has smaller cross sectional area than straight flat film which leads to less …

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X-ray diffraction (XRD) analysis of the original serpentine and the

It appears that culture medium with autoclaved bacteria (Control I) had a noticeable effect on serpentine dissolution with the Mg concentration rose from 6.5 to 15 mg/L in the first 5 days and ...

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Stretchable batteries with self-similar serpentine

The resistance of the serpentine secondary coil is 1.92 kΩ m −1; a coil with similar overall geometry but without the serpentine shape is calculated to be 1.22 kΩ m −1. The efficiency of the ...

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Stretchability of indium tin oxide (ITO) serpentine thin …

In this paper, stretchability of Kapton-supported serpentine ITO thin film is experimentally measured and numerically simulated. Serpentine shapes are varied systematically and the effects of serpentine ribbon width, arc radius, arc angle and arm …

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Nano-Silver Ink of High Conductivity and Low Sintering

Highly conductive ink with low sintering temperature is important for printed electronics on paper substrate. Silver nanoparticles (Ag NPs) of different average radii ranging from 48 to 176 nm were synthesized by adjusting the Ag+ concentration in the reaction process. The electric resistivity of the Ag NP-based ink film in relation to Ag NP …

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The temperature distribution of a spiral heater a 2D

The shape of the heaters has been investigated, affecting the temperature distribution of MHP. An optimized serpentine heater with up to 86.64% coverage on a rectangular film has been reported [30 ...

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Highly sensitive and stretchable piezoelectric strain sensor …

HIGHLIGHTS. A new flexible strain sensor based on PVDF film with improved structural design is fabricated by a cost-effective cut-and-paste process. The sensor …

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An automatic numerical approach to optimize flexible serpentine

Strain concentrations are observed in the inner edge of the arc segment area. The maximum strain in the serpentine interconnect limits the stretchability of the whole structure, thus the optimization goal is to find the optimal design which minimizes the maximum strain in the serpentine interconnects. ... (ITO) serpentine thin films …

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Characteristics and Breakdown Behaviors of Polysilicon Resistors …

The polysilicon resistors with different doping concentrations were prepared at 1 μm BCD standard process platform. The doping concentrations and corresponding square resistances are summarized in Table 1. Except for the doping concentration, all other processes were the same for all the resistors.

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Mechanisms of polymeric film formation

The sprayed droplets spread onto the substrate surface and, as the solvent evaporates, the polymer chains interpenetrate, going through a gel state then forming the …

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Dissolution of natural serpentinite in mineral and organic acids

The loss on ignition at 970 °C was 12 wt.%. Major impurities were S, Ca, and Cl (concentrations of 0.2–0.4 wt.%). Assuming that all magnesium exists as serpentine and all iron as magnetite, the serpentinite would (based on the magnesium and iron fractions of the sample, listed in Table 1) consist of 83 wt.% serpentine and 14 wt.% magnetite.

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High density integration of stretchable inorganic thin film …

Here, we report the large-scale integration of high-performance inorganic thin film transistors (TFTs) by direct fabrication and embedding of devices in serpentine …

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Executive Summary Testing Methods for Asbestos in Talc

positive for amphibole or serpentine minerals in talc. The CTFA J4-1 and USP methods remain ... the presence of asbestos in products at less than 1% concentration. In contrast, the likely amount ...

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A comprehensive review on liquid–liquid two-phase flow in

The contact angle increased up to more than 90° when the SDS concentration exceeded a critical micellar concentration (0.05% w/w). ... Figure 13 presents the variations of the mass transfer efficiency before and after the droplet across the serpentine section ... the film thickness plays a significant role to calculate the specific …

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Wearable plasmonic paper–based microfluidics for continuous

Simple paper microfluidic devices can accurately quantify sweat loss and sweat rate, and simultaneously, the plasmonic sensors quantify analyte concentrations. Wearable plastic and silicone microfluidic devices use the natural pressure created by sweat glands to drive sweat into hydrophobic channels ( 10, 17, 61 ).

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Characterization of Tribofilms Generated from …

The SEM and EDX elemental mapping shows that a tribofilm formed by the commercial oil with serpentine contains silicon, magnesium, oxygen, phosphorus, sulfur, …

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