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In the stage B, the RLAD (AUC, 0.99; cutoff, ≥1.8; sensitivity, 100%; specificity 93%) performed better than VLAS (AUC, 0.90; cutoff, ≥2.4; sensitivity, 66%; specificity 100%) and VHS (AUC, 0.89; cutoff, ≥10.7; sensitivity, 88%; specificity 83%) in the detection of dogs fulfilling the echocardiographic criteria for stage B2. VLAS and RLAD represent useful radiological tools for the detection of LA enlargement in dogs with MMVD. In asymptomatic dogs, the RLAD performs better than VLAS and VHS in the prediction of those fulfilling the echocardiographic criteria for stage B2. VLAS and RLAD represent useful radiological tools for the detection of LA enlargement in dogs with MMVD. In asymptomatic dogs, the RLAD performs better than VLAS and VHS in the prediction of those fulfilling the echocardiographic criteria for stage B2.This paper rationally designs the morphology and phase structure of carbon nanotube/polyaniline@MoS2 (CNT/PANI@MoS2) composites, with MoS2 conductive wrapping growing vertically on the outer layer of the composites via hydrothermal method. The crystalline nature and chemical properties are characterized by X-ray diffraction (XRD), Flourier transformation infrared spectroscopy (FT-IR), Raman spectroscopy (Raman), X-ray photoelectron spectroscopy (XPS). Morphology and microstructures are determined by Scanning electric microscopy (SEM), Transmission electron microscope (TEM) and Brunauer-Emmett-Teller (BET). The developed composites possess excellent electrochemical properties (the specific capacitance is substantially increased by ~119%, reaching 700.0 F g-1 after wrapping by MoS2) and good cycling stability (after over 5000 cycles retains 80.8% capacitance) in three-electrode systems, which indicating that the unique morphology of MoS2 shells endow the channels to composites for rapid charge transport and ionic diffusion. Furthermore, symmetric supercapacitors devices assembled with the CNT/PANI@MoS2 composites achieve specific capacitance of 459.7 F g-1 at 1 A g-1, capacitance retention is 97.4% after 10,000 cycles and reach superior energy density of 40.9 Wh kg-1 at the power density of 400 W kg-1. This strategy of three-dimensional wrapping method may open up a new potential to relieve the dilemma of degraded performance of supercapacitor, while improving the capacitance and stability for supercapacitors.The synergetic effect between two or more electrochemically active materials usually leads to superior lithium-ion storage performance. This work demonstrates a straightforward and effective approach to synthesize a reduced graphene oxide (RGO) encapsulated larger goethite (FeOOH) nanoparticles and smaller tin dioxide (SnO2) quantum dots hierarchical composite (SnO2@FeOOH/RGO). The synthesized SnO2@FeOOH/RGO composite exhibits encouraging lithium-ion storage capability than controlled SnO2/RGO and FeOOH/RGO samples with a stable specific capacity of 638 mAh·g-1 under a high current rate of 1000 mA·g-1 for 2000 continual cycles and good rate performance. The redox reaction between reductive metal-atoms or metal-ions and graphene oxide (GO) sheets guarantees an effective immobilization of corresponding nano-sized metal oxide and hydroxide crystals by the RGO framework. Furthermore, the engineered larger FeOOH crystals engage in lithium-ion storage and perform an ideal spacer between the restacked RGO sheets. Therefore, smaller SnO2 quantum dots' inherent excellent rate capability is extensively promoted due to the improvement of electrolyte diffusion and electron transfer condition. The sample design and fabrication method in this work might be developed for broader applications.Layered double hydroxides (LDHs) has been regarded as one of the most potential photocatalysts for degradation of the pollutants, due to the tunable elements in the laminates, high surface area and exposed active sites. Developing a photocatalyst with a visible light activity and fast charge separation efficiency is a main research focus. In this work, a central-collapsed CoFeAl-LDHs was formed via the selective etching Al3+ in the laminates, which relied on the function of OH- produced by urea hydrolysis. The Central-collapsed structure of CoFeAl-LDHs exhibited enhanced adsorption activity and photocatalytic efficiency. The results show that the pseudo-second-order kinetic model and the Langmuir model are suitable for adsorption behavior. This etching cavity is beneficial to the adsorption of MB and provides a better platform for the direct interaction between MB and CoFeAl-LDHs. The morphology and photoelectrochemical properties of the central-collapsed structure of LDHs were characterized and used to explore the relationship between the etching degree and photocatalytic activity. The photocatalytic properties of all the samples under visible light irradiation were evaluated, and LDH-6 has the best photocatalytic activity. This work provides a novel approach for the fabrication of central-collapsed structure of layered double hydroxides photocatalysts to meet environmental and energy requirements.Transition metal carbon composites derived from metal organic frameworks (MOFs) attract increasing attention in microwave absorption field. However, finding a relatively facile and green method to prepare MOFs precursor is still a challenge. Besides, it is also difficult to obtain carbon nanotubes based compounds by only using MOF as sacrificed template. Herein, nickel (Ni) MOF is fabricated at room temperature with water as solvent. Afterwards, nickel/carbon nanotubes composite (Ni/CN) is prepared via only in-situ pyrolysis of Ni MOF. The pyrolysis temperature greatly affects nitrogen (N) dopant state for Ni/CN composites. The Ni/CN composite prepared at 700 °C (Ni/CN-700) exhibits the maximum reflection loss (RL) of -65 dB with the effective absorbing bandwidth (EAB) about 4.6 GHz at 1.9 mm, when the filling loading is only 10 wt% in the matrix. https://www.selleckchem.com/products/gsk-2837808A.html Remarkably, the Ni/CN composite is excellent microwave absorber with lightweight and strong absorption. The magnetic metal/carbon nanotubes derived from MOF prepared in green solvent offers a facile, environmentally friendly and designable strategy for exploring excellent microwave absorber.
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