Recently, it has been established that the human resident microbiota plays key roles in health maintenance. Therefore, it has become an emerging prevention and treatment target for metabolic syndrome. The resident microbiota associated with chronic inflammation has been shown to contribute to the onset of type 2 diabetes mellitus (T2DM). Moreover, the microbiota is altered in the development of…
Abstract To address the need for direct extraction of the capacitance of a chip, a capacitance measurement array (CMA) has been developed. The operation of the CMA is based on the charge-based capacitance measurement (CBCM) technique. The CMA chip consists of 144 CBCM array units (CAU) and each CAU is designed to measure eight individual capacitors. Element selection and precise measurement ar…
This article presents a method to model the overall fire protection performance of an intumescent coating under different post-flashover furnace fire conditions. Intumescent coatings are reactive fire protection materials, and their fire protection performance, among which the maximum expansion ratio is the key indicator, depends on the heating condition. The aim of this research is to find on…
a b s t r a c t The electrode is the key part of the electrochemical capacitors (ECs), so the electrode materials are the most important factors to determine the properties of ECs. In this paper, the storage principles and characteristics of electrode materials, including carbon-based materials, transition metal oxides and conductive polymers for ECs are depicted briefly. Among them, more …
Abstract Porous carbon materials were prepared using resorcinol and formaldehyde catalyzed by KOH in a sol–gel process followed by carbonization, during which the KOH serves as an activating agent and generates pores mainly located in the micropore range. With an increase of mass ratio of KOH to resorcinol from 1 to 4, both the specific surface area and the pore volume of the carbons increas…
Abstract High regulation of dams or sluices disturbs flow regimes and pollutant transformation process significantly in most basins over the world. The water quality and quantity simulation in highly regulated river basins is always a very complicated task. The Huai River Basin is a typical area in China with the highest density of water projects and serious pollution problems ultaneously. …
Abstract. To explore the effects of the novel properties of carbon nanoparticles (CNPs) on cytotoxicity, the adsorption of serum proteins in cell culture medium on multi-walled carbon nanotubes and three kinds of carbon blacks was investigated. The uptake of CNPs by Hela cells was measured quantitatively using 99mTc radionuclide labeling and tracing techniques, and the dependence of CNPs u…
Abstract. A series of nanostructured Pd-doped mixed oxides MOx-CeO2 (M = Mn, Fe, Co, Ni, Cu), with uniform mesoporous structure and large surface area exceeding 115 m2 g-1, were synthesized in one step by a surfactant-assisted co-precipitation. Their catalytic performance was investigated using total oxidation of CO and C3H8 as the model reactions. The results show that, a synergism exists…
Recent developments in solid-state NMR techniques helped acquire high-resolution NMR spectra for solid systems with structural disorder. But the structural origin of the observed chemical shift nonequivalence in these systems has not been revealed. We report a quantum chemical investigation of the solid-state NMR spectrum in N,N-bis(diphenylphosphino)-N-((S)-R-methylbenzyl)amine, where eight…
A series of metal-organic gels (MOGs) were formed in CH3OH-CHCl3 solution based on L1 and Pd(COD)(NO3)2 (L1 ) 4,4′,4′′-(1,3,5-triazine-2,4,6-triyl)tris(N-(pyridin-3-ylmethyl)benzamide, COD ) cycloocta-1,5-diene) at different ratios. FT-IR, NMR, and fluorescence spectroscopy show that hydrogen bonding, π-π interaction, and coordination bonding are involved in the gel formation. The mo…
BACKGROUND:Meptyldinocap (2,4-DNOPC) is a novel powdery mildew (Erysiphe necator) fungicide which showsprotectant and post-infective activities. However, there is no reliable validated LC-MS/MS method for measuring trace levels of meptyldinocap in cucumber. A method for the determination of 2,4-DNOPC using LC-MS/MS in cucumber and soil was developed. Additionally, the mode of degradation and th…