In this study,a Ni-Fe metal-organic framework modified by-NH_(2)and-SH was synthesized using a sim-ple hydrothermal process for enhancing photocatalytic CO_(2)*** expected,the N2S-NiFe(NH_(2)-BDC/H_(4)DSBDC,2:1)displa...
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In this study,a Ni-Fe metal-organic framework modified by-NH_(2)and-SH was synthesized using a sim-ple hydrothermal process for enhancing photocatalytic CO_(2)*** expected,the N2S-NiFe(NH_(2)-BDC/H_(4)DSBDC,2:1)displayed excellent photocatalytic CO_(2)reduction activity and high CO selectivity(12,412.23μmol g^(−1)h^(−1))under visible light irradiation(λ≥420 nm),which is 5 times that of ***,the excellent photocatalytic performance of N2S-NiFe can benefit from the rich defect trap site caused by the introduction of amino and sulfhydryl groups,accelerating charge transfer and promoting space charge separation,as supported by the photo-electrochemical *** better understand the CO_(2)adsorption mechanism,density functional theory calculations were performed,which revealed that the Niov site has more negative adsorption energy compared with the Feov *** study provides a simple strategy to establish efficient photocatalysts for CO_(2)reduction through the modification of organic ligands.
Emotion analysis in conversation has been a popular research topic in the natural language processing field. While much of the existing research has focused on emotion recognition in conversation, the emotion inferenc...
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The design of validity index of fuzzy clustering has always been a historical problem in fuzzy clustering field. When the distribution of cluster centers is very close, it is difficult for the existing fuzzy clusterin...
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In this paper,a dual Mach-Zehnder interferometer for measuring both temperature and strain is proposed and verified by *** sensor configuration involves cascading a four-core fiber and a double-clad fiber between two ...
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In this paper,a dual Mach-Zehnder interferometer for measuring both temperature and strain is proposed and verified by *** sensor configuration involves cascading a four-core fiber and a double-clad fiber between two single-mode *** exploiting the different responses of the two Mach-Zehnder interferometers to temperature and strain,we construct a matrix using two selected resonance dips from the transmission spectra,so that both temperature and strain can be measured *** experimental results show the sensor’s remarkable performance,with the maximum temperature sensitivity of-94.2 pm/℃and the maximum strain sensitivity of 2.68 pm/με.The maximum temperature error and strain error are found to be±0.35℃and±4.8με,*** with other optical fiber sensors,the sensor has high sensitivity,a simple structure,and ease to manufacture and implement,making it a structure choice for applications in quality inspection of materials.
In the fuzzy field, Zadeh put forward the CRI (compositional rule of inference) algorithm to deal with fuzzy reasoning. Later, Wang put forward the triple I algorithm, which is logically more complete than CRI. Thence...
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To effectively localize low-altitude targets under clutter interference, this article proposes a power and bandwidth optimization strategy within bandwidth budget constraints. Firstly, using prior information of the t...
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In this paper, we propose an optimization scheme for joint radar node selection and power allocation to reduce the total power consumption of a distributed multiple-input multiple-output (MIMO) dual-functional radar-c...
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To further accelerate the analysis of monostatic electromagnetic (EM) scattering problems of objects, an improved compressive sensing (CS)-based model is proposed. First, an orthogonal subspace spanned by the wide-ang...
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At present,the leakage rate of the water distribution network in China is still high,and the waste of water resources caused by water distribution network leakage is quite serious every ***,the location of pipeline le...
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At present,the leakage rate of the water distribution network in China is still high,and the waste of water resources caused by water distribution network leakage is quite serious every ***,the location of pipeline leakage is of great significance for saving water resources and reducing economic *** emission technology is the most widely used pipeline leak location *** traditional non-stationary random signal de-noising method mainly relies on the estimation of noise parameters,ignoring periodic noise and components unrelated to pipeline *** at the above problems,this paper proposes a leak location method for water supply pipelines based on a multivariate variational mode decomposition *** method combines the two parameters of the energy loss coefficient and the correlation coefficient between adjacent modes,and adaptively determines the decomposition mode number K according to the characteristics of the signal *** to the correlation coefficient,the effective component is selected to reconstruct the signal and the cross-correlation time delay is estimated to determine the location of the pipeline leakage *** experimental results show that this method has higher accuracy than the cross-correlation method based on VMD and the cross-correlation method based on EMD,and the average relative positioning error is less than 2.2%.
In this paper, a deep learning optimization method combining U-net model and cycle generative adversarial network (Cycle-GAN) is proposed to efficiently solve the electromagnetic inverse scattering (EMIS) problems. Fi...
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