Magnetic Properties and Superconductivity in GdFeAsO1−x F x

Cui, Yun; Chen, Y. L.; Cheng, C.H.; Yang, Ye; Zhang, Y.; Zhao, Yong

doi:10.1007/s10948-010-0699-7

Cited by 13 publications

(3 citation statements)

References 12 publications

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“…In the present work, we used combination of reduced graphene oxide (RGO) and DHPMB in the fabrication of DHPMB/RGO/CPE sensor for detection of NAC. Modification of electrode with RGO can lead to an increase of the surface area of electrode and its catalytic properties , hence we used RGO and DHPMB for their unique properties. Under the optimum conditions, some parameters of analyte (NAC) such as the electron transfer coefficient ( α ), the electron transfer rate constant) k s ), the diffusion coefficient of species in a 0.1 M media solution (pH=7) were calculated.…”

Section: Introductionsupporting

confidence: 65%

Development of a Carbon Paste Electrode Modified with Reduced Graphene Oxide and an Imidazole Derivative for Simultaneous Determination of Biological Species of N‐acetyl‐L‐cysteine, Uric Acid and Dopamine

et al. 2016

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In this work, the modified carbon paste electrode (CPE) with an imidazole derivative 2‐(2,3 dihydroxy phenyl) 4‐methyl benzimidazole (DHPMB) and reduced graphene oxide (RGO) was used as an electrochemical sensor for electrocatalytic oxidation of N‐acetyl‐L‐cysteine (NAC). The electrocatalytic oxidation of N‐acetyl‐L‐cysteine on the modified electrode surface was then investigated, indicating a reduction in oxidative over voltage and an intensive increase in the current of analyte. The scan rate potential, the percentages of DHPMB and RGO, and the pH solution were optimized. Under the optimum conditions, some parameters such as the electron transfer coefficient (α) between electrode and modifier, and the electron transfer rate constant) ks) in a 0.1 M phosphate buffer solution (pH=7.0) were obtained by cyclic voltammetry method. The diffusion coefficient of species (D) 3.96×10−5 cm2 s−1 was calculated by chronoamperometeric technique and the Tafel plot was used to calculate α (0.46) for N‐ acetyl‐L‐cysteine. Also, by using differential pulse voltammetric (DPV) technique, two linear dynamic ranges of 2–18 µM and 18–1000 µM with the detection limit of 61.0 nM for N‐acetyl‐L‐cysteine (NAC) were achieved. In the co‐existence system of N‐acetyl‐L‐cysteine (NAC), uric acid (UA) and dopamine (DA), the linear response ranges for NAC, UA, and DA are 6.0–400.0 µM, 5.0–50.0 µM and 2.0–20.0 µM, respectively and the detection limits based on (C=3sb/m) are 0.067 µM, 0.246 µM and 0.136 µM, respectively. The obtained results indicated that DHPMB/RGO/CPE is applicable to separate NAC, uric acid (UA) and dopamine (DA) oxidative peaks, simultaneously. For analytic performance, the mentioned modified electrode was used for determination of NAC in the drug samples with acceptable results, and the simultaneous determination of NAC, UA and DA oxidative peaks was investigated in the serum solutions, too.

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Section: Introductionsupporting

confidence: 65%

Development of a Carbon Paste Electrode Modified with Reduced Graphene Oxide and an Imidazole Derivative for Simultaneous Determination of Biological Species of N‐acetyl‐L‐cysteine, Uric Acid and Dopamine

et al. 2016

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“…There has been some earlier work in this area (see for example, [21][22][23][24][25][26][27][28][29][30][31][32] and also [33][34][35][36][37][38] for related works). However, in all those scalar-field simulations the scalar field equation is not solved explicitly, but rather it is assumed either that the fifth force is proportional to gravity so that its effect is a simple rescaling of the gravitational constant, or that the fifth force takes the Yukawa form with exponential cut-off beyond some scale.…”

Section: Introductionmentioning

confidence: 99%

N-body simulations for coupled scalar-field cosmology

Barrow

2011

Phys. Rev. D

126

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We describe in detail the general methodology and numerical implementation of consistent N-body simulations for coupled scalar field cosmological models, including the background cosmology and the generation of initial conditions (with the different couplings to different matter species taken into account). We perform fully consistent simulations for a class of coupled scalar field models with an inverse power-law potential and negative coupling constant, for which the chameleon mechanism does not operate. We find that in such cosmological models the scalar-field potential plays a negligible role except in the background expansion, and the fifth force that is produced is proportional to gravity in magnitude, justifying the use of a rescaled gravitational constant G in some earlier Nbody simulations of similar models. We study the effects of the scalar coupling on the nonlinear matter power spectra and compare with linear perturbation calculations to investigate where the nonlinear model deviates from the linear approximation. For the first time, the algorithm to identify gravitationally virialized matter halos is adapted to the scalar field cosmology, and then used to measure the mass function and study the properties of virialized halos. We find that the net effect of the scalar coupling helps produce more heavy halos in our simulation boxes and suppresses the inner (but not the outer) density profile of halos compared with those predicted by lambda-CDM, while this suppression weakens as the coupling between the scalar field and dark matter particles increases in strength.

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“…Process design : Most microalgae commercial cultivation takes place in photobioreactors that improve control, productivity, quality, and biomass recovery. Various closed photobioreactors have therefore been designed to optimize light utilization efficiency (especially by reducing light inhibition), gas-liquid mass transfer, and biomass harvesting (Borowiak et al, 2021;Cui et al, 2021;Yaqoubnejad et al, 2021;Wang et al, 2022b). However, and despite inherent risks of contamination, open raceways ponds remain the system of choice for commercial production as these systems are more economic to build and operate than closed designs (Jorquera et al, 2010).…”

Section: Microalgae Cultivation At Large Scalementioning

confidence: 99%

Microalgae cultivation: closing the laboratory-field yield gap

Plouviez

Guieysse

2023

Preprint

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Microalgal biotechnologies attract considerable research investment on a premise that microalgae cultivation is highly productive and sustainable. Unfortunately, and despite decades of commercial experience and research investment, only a few commercial microalgae cultivation and processing facilities are currently in operation. Microalgae cultivation indeed remains costly and complex to implement, and the large scale required to achieve commercial viability in low-value applications has critical implications on productivity and local environmental impacts. However, microalgae biotechnology is still a developing field, and we believe technological advances in strain selection (and rotation) as well as process design, operation and control will double current commercial productivities from 6 (current) to 12 (future) g-DW·m ·d . These gains, together with process integration withing existing supply chains, should greatly improve the adoption of microalgae cultivation, especially in the agri-food sector. To achieve this, future investment must also address the numerous non-technical constraints associated with microalgal production at scale.

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Magnetic Properties and Superconductivity in GdFeAsO1−x F x

Cited by 13 publications

References 12 publications

Development of a Carbon Paste Electrode Modified with Reduced Graphene Oxide and an Imidazole Derivative for Simultaneous Determination of Biological Species of N‐acetyl‐L‐cysteine, Uric Acid and Dopamine

Development of a Carbon Paste Electrode Modified with Reduced Graphene Oxide and an Imidazole Derivative for Simultaneous Determination of Biological Species of N‐acetyl‐L‐cysteine, Uric Acid and Dopamine

N-body simulations for coupled scalar-field cosmology

Microalgae cultivation: closing the laboratory-field yield gap

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